4-Hydroxypyridine - ≥97% , CAS No.626-64-2

CAS: 626-64-2 Cat. No.: H106341 Molecular Weight: 95.1 Beilstein Registry Number: 105800 EC Number: 210-958-3
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
4-Pyridinol | 4-Pyridone | BRN 0105800 | A8662 | AI3-61970 | HY-W007690 | SR-1C7 | BS-3730 | FT-0618744 | EINECS 210-958-3 | NSC 146174 | EN300-21574 | p-Hydroxypyridine | pyridin-4-ol | STL363251 | 5-21-07-00152 (Beilstein Handbook Reference) | MFCD00006
Storage
Argon charged,Room temperature
Shipped In
Normal
Size
Status
Price
Qty
5g
H106341-5g
3
$9.90
10g
H106341-10g
2
$10.90
25g
H106341-25g
3

$20.90

$31.90
Save $11.00 (34.48%)
100g
H106341-100g
3

$59.90

$89.90
Save $30.00 (33.37%)
500g
H106341-500g
1

$152.90

$229.90
Save $77.00 (33.49%)
Enter a quantity for the sizes you want to add.
🧪

Why this grade

≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Argon charged,Room temperature Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 11 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Solubility in water: Soluble Solubility in other solvents: Soluble in ethanol and methanol Slightly soluble in chloroform Pract. insoluble in ether and benzene Pract. insoluble in ether and benzene
It was used in the synthesis of (Ag3MoO3F3) (Ag3MoO4)Cl by hydro(solvato)thermal methods. It was used as model compound to study the natural photodegradation of representative aquatic environmental contaminants.

Specifications

Synonyms
4-Pyridinol | 4-Pyridone | BRN 0105800 | A8662 | AI3-61970 | HY-W007690 | SR-1C7 | BS-3730 | FT-0618744 | EINECS 210-958-3 | NSC 146174 | EN300-21574 | p-Hydroxypyridine | pyridin-4-ol | STL363251 | 5-21-07-00152 (Beilstein Handbook Reference) | MFCD00006
Specifications & Purity
≥97%
Storage
Argon charged, Room temperature
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Pubchem Sid508809733
Canonical SmilesC1=CNC=CC1=O
IUPAC Name1H-pyridin-4-one
InChIKeyGCNTZFIIOFTKIY-UHFFFAOYSA-N
INCHI1S/C5H5NO/c7-5-1-3-6-4-2-5/h1-4H,(H,6,7)
Isomeric SMILES C1=CNC=CC1=O
WGK Germany 3
RTECS UU7701450
Molecular Weight 95.1
Beilstein 105800
Reaxy-Rn 105391
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=105391&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassPyridines and derivatives
SubclassHydropyridines
Intermediate Tree Nodes Not available
Direct ParentDihydropyridines
Alternative Parents Vinylogous amides  Heteroaromatic compounds  Cyclic ketones  Azacyclic compounds  Organopnictogen compounds  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Dihydropyridine - Heteroaromatic compound - Vinylogous amide - Cyclic ketone - Azacycle - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as dihydropyridines. These are compounds containing a dihydropyridine moiety, which is a semi-saturated pyridine derivative with two double bonds.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

13 results found

Lot NumberCertificate TypeDateItem
F2612124Certificate of AnalysisJun 25, 2026 H106341
G2222351Certificate of AnalysisMay 09, 2026 H106341
G2222352Certificate of AnalysisMay 09, 2026 H106341
G2222377Certificate of AnalysisMay 09, 2026 H106341
G2222378Certificate of AnalysisMay 09, 2026 H106341
H2512051Certificate of AnalysisAug 14, 2025 H106341
J2128686Certificate of AnalysisAug 11, 2025 H106341
J2128687Certificate of AnalysisAug 11, 2025 H106341
J2128688Certificate of AnalysisAug 11, 2025 H106341
F2110151Certificate of AnalysisMar 04, 2025 H106341
A2514174Certificate of AnalysisJun 11, 2022 H106341
A2609066Certificate of AnalysisJun 11, 2022 H106341
I2301169Certificate of AnalysisJun 11, 2022 H106341

Show more ⌵

Chemical and Physical Properties
SensitivityHygroscopic & Light sensitive
Flash Point(°F)221 °C
Flash Point(°C)221°C
Boil Point(°C)230-235°C
Melt Point(°C)148°C
Molecular Weight95.100 g/mol
XLogP3-1.300
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass95.0371 Da
Monoisotopic Mass95.0371 Da
Topological Polar Surface Area29.100 Ų
Heavy Atom Count7
Formal Charge0
Complexity121.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Documents & Articles
Citations of This Product
References
1. Guokai Cui, Yisha Xu, Daqing Hu, Ying Zhou, Chunliang Ge, Huayan Liu, Wenyang Fan, Zekai Zhang, Biao Chen, Quanli Ke, Yaoji Chen, Bing Zhou, Wei Zhang, Ruina Zhang, Hanfeng Lu.  (2023)  Tuning functional ionic deep eutectic solvents as green sorbents and catalysts for highly efficient capture and transformation of CO2 to quinazoline-2,4(1H,3H)-dione and its derivatives.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2023.143991]
2. Lidong Cao, Xingzhong Fang, Guofei Chen.  (2022)  Research on N,N′-carbonyldiimidazole: A novel low-temperature imidization accelerator of polyimide.  JOURNAL OF POLYMER SCIENCE,  61  (6): (491-502).  [PMID:] [10.1002/pol.20220599]
3. Ruoxian Hou, Hanzhang Chen, Defu Sun, Nana Zhang, Chuanying Shen, Duanliang Wang.  (2022)  Investigating the structure and optical characteristics of two new organic-inorganic hybrid crystals.  OPTIK,      [PMID:] [10.1016/j.ijleo.2022.170301]
4. Lei Yuan, Hongshuai Gao, Haiyan Jiang, Shaojuan Zeng, Tao Li, Baozeng Ren, Xiangping Zhang.  (2020)  Experimental and thermodynamic analysis of NH3 absorption in dual-functionalized pyridinium-based ionic liquids.  JOURNAL OF MOLECULAR LIQUIDS,      [PMID:] [10.1016/j.molliq.2020.114601]
5. Zhao Shuxue, Hu Chunhui, Guo Lizhong, Li Kuiran, Yu Hao.  (2019)  Isolation of a 3-hydroxypyridine degrading bacterium, Agrobacterium sp. DW-1, and its proposed degradation pathway.  AMB Express,  (1): (1-9).  [PMID:31102032] [10.1186/s13568-019-0782-9]
6. Guofeng Liu, Jinying Liu, Chuanliang Feng, Yanli Zhao.  (2017)  Unexpected right-handed helical nanostructures co-assembled from L-phenylalanine derivatives and achiral bipyridines.  Chemical Science,  (3): (1769-1775).  [PMID:29780452] [10.1039/C6SC04808K]
7. Jialin Zhang, Zhimin Chen, Hao Wu, Feng Wu, Chunying He, Bin Wang, Yiqun Wu, Zhiyu Ren.  (2016)  An electrochemical bifunctional sensor for the detection of nitrite and hydrogen peroxide based on layer-by-layer multilayer films of cationic phthalocyanine cobalt(II) and carbon nanotubes.  Journal of Materials Chemistry B,  (7): (1310-1317).  [PMID:32262986] [10.1039/C5TB01995H]
8. Ling Yu, Hui Gao, Nan Zhang, Xian-Ming Zhang.  (2024)  Symmetry related proton conductivity tunability via aliovalent metal substitution in imidazolium templated stable metal-organic framework hybrid membranes.  JOURNAL OF COLLOID AND INTERFACE SCIENCE,      [PMID:39488896] [10.1016/j.jcis.2024.10.169]
9. Xiao Zhu, Shuhui Liu, Ruhui Shang, Xin Chen, Yingjie Xu, Yujun Guo, Baoping Ling.  (2024)  Understanding on the structure of novel hydroxypyridine anion-based ionic liquids and their effect on CO2 absorption behavior.  Journal of Environmental Chemical Engineering,      [PMID:] [10.1016/j.jece.2024.113552]
10. Xiong Zhao, Junying Zhang, Jing Li, Ping Qiu.  (2025)  Experimental and theoretical research of three pyridine derivatives as corrosion inhibitors on steel in HCl acid solution.  ANTI-CORROSION METHODS AND MATERIALS,      [PMID:] [10.1108/ACMM-04-2024-3012]
11. Qinghe Li, Lilin Yang, Hongyuan Sha, Dongling Yang, Zujian Wang, Xiaoming Yang, Rongbing Su, Bin Su, Chao He, Xifa Long.  (2026)  The Achievement of a Strong Second Harmonic Generation Response and a Large Birefringence in Sulfates.  ADVANCED FUNCTIONAL MATERIALS,      [PMID:] [10.1002/adfm.74891]
Solution Calculators
Reviews

Customer Reviews

Shall we send you a message when we have discounts available?

Remind me later

Thank you! Please check your email inbox to confirm.

Oops! Notifications are disabled.